The HS2 performs the same functions as as BP1 beltpack but is designed to be mounted in a U.S. standard 2-gang electrical box. In addition to the BP1’s front panel controls for Mic On/Off, Volume, Sidetone and Signal, it has a recessed screwdriver adjust microphone sensitivity control to adjust to a headset with either a dynamic or electret microphone. A version is also available (HS2M) which includes a rotary switch to connect the station to up to 4 different circuits, one-at-a-time.
The CALL button doubles as the signal light.
HS2 connections are via a rear panel plug-in terminal strip. The mating connector is included.